Mahjong Titans Scoring

> I cannot figure out how the scoring works for this game. It does not seem to
> operate according to the explanations given in the rules. It does not seem to
> be consistent either. It seems random. Sometimes you get bonuses, other times
> you don't, sometimes when you're supposed to -- you've taken off consecutive
> pairs of the same suit -- and other times for no apparent reason.
>
> I think it has something to do with how much time has elapsed, or how many
> tiles you have removed. But even then, it doesn't explain all the randomness
> in the scoring.
>
> I have searched & googled the internet & can't find out anything.
>
> Has anybody figured it out?
>
> Thanks!
>
> Thanks!